PDF malware analysis — malicious · e29ba7e22b3d2fad

MALICIOUS

PDF

15.1 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)

MD5: 11ddf3b39aee02176c6bb7325367bc10 SHA-1: c925729530a6de29eeee98473f5fbcc2aa34bbe8 SHA-256: e29ba7e22b3d2fade4f31290e3738111d519af53572c89ae0a9490e0d1228105

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Win.Trojan.Agent-36166' strongly suggests malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload. The SHA256 hash is included as a primary indicator.

Heuristics 4

ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36166
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `ccd4c4020f5283850011873aac1ce4d5d88e4a060042b3ea6cbd0427b7edaadf`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	84261 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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